turns into a bolt action....not enought power to make the slide work...but the few rounds that i fired made a pretty good group. last night i did some loads for my mosin nagat 7.62x54r...using cast lead bullets...with clays,tite group,universel,and trail boss.....going to try that this sunday....

?So explain to me why you are doing this. Old black powder cartridges like .45 Colt, .38 Long Colt, and .45-70 had large cases (well, 2 out of 3 at least) because it took that much black powder to shoot a healthy round. Smokeless invention made black obsolete, and made cases smaller. Cowboy shooting brought back the old black powder guns, but because most of us shot smokeless, it meant that even if you shot a full-house .45 Colt, you didn't put much powder in that huge case (eg. 6.2 gr of Titegroup in a .45 Colt for max load - WAY less than the case took). Trail boss was designed to be a bulky powder to take up space. 5# of Trail Boss uses the same cans as the usual 8# of regular powder. So the cowboy shooters were finally given an option to load their cases fairly full yet still shoot something lighter than full house.

You are talking about weapons that were designed for smokeless. Part of whatever advantage you get from the calibre you choose is the case capacity. Yet you are shooting far less than the case capacity. ?Why not just shoot a smaller calibre. I'm just not following the reasoning here, other than "I can".

A smaller caliber, yes, that's an option, too.
It's kind of like what the writer of the KISS article stated, one powder that's versatile in multiple calibers that gives you an economical load for plinking and punching holes in paper.
Quite simply, I don't have a 22 rifle and I like shooting the mil-surps. It's just not required to shoot full-blown loads everytime I pull the trigger. Sometimes it's just a matter of what powders I have in stock.

Although I don't make a habit of it, plus the fact that I come by modestly-priced jacketed fodder more often, I have loaded the Saeco 081 (190g LRNGC) with about 24g of IMR 4198 in my Hakim with full functioning. Can't say it's run enough to clog the gas tube or anything detrimental.